Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Design of AC Input LCL Filter for Voltage Source PWM Converter

전압형 PWM 컨버터의 교류입력측 LCL필터 설계

  • Noh, Jae-Seok (School of Electrical and Computer Engineering, Chungbuk National University) ;
  • Choi, Jae-Ho (School of Electrical and Computer Engineering, Chungbuk National University)
  • 노재석 (충북대학교 전기전자 및 컴퓨터 공학부) ;
  • 최재호 (충북대학교 전기전자 및 컴퓨터 공학부)
  • Published : 2002.07.01
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Abstract

In this paper, a design method of LCL filter at the AC input side of a voltage source PWM converter is proposed. Effective method to prevent pollution of the utility caused by high frequency current ripple is to use a LCL filter instead of the L filter The C elements in the filter provide a low impedance path for the high frequency component, preventing them from entering the utility. A resistor in series with a capacitor is used for damping the resonance in the filter. The design examples are shown and the validity of the proposed design method is verified through the PSIM simulation.

Keywords